Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kc7 win in 3 half-moves
4 Kd7 win in 3 half-moves
5 Kb8 win in 7 half-moves
6 Kc6 draw
7 Kd5 draw
8 Kd6 draw
9 Kd8 draw
10 Re8 draw
11 Rf8 draw
12 Rg5 draw
13 Rg6 draw
14 Rg7 draw
15 Rh8 draw
16 Kb4 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rg2 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rg4 loss in 2 half-moves